| 摘要 |
PROBLEM TO BE SOLVED: To accurately detect a defect on a printed board. ! SOLUTION: An inspection apparatus includes a color image pickup part for acquiring a color pickup image and a black-and-white image pickup part for acquiring a black-and-white pickup image. In a plating part 92 on a printed board, a value of a pixel in the black-and-white pickup image becomes a maximum pixel value and a value of a pixel in the color pickup image is lower than the maximum pixel value. In a solder resist part 91, contrast in the black-and-white pickup image is higher than contrast in the color pickup image. A defect detection part detects defects in the plating part 92 and a silk part 93 on the printed board by using the color pickup image and detects a defect in the solder resist part 91 on the printed board by using the black-and-white pickup image. Consequently, defects can be accurately detected in each of the solder resist part 91, the plating part 92 and the silk part 93. ! COPYRIGHT: (C)2015,JPO&INPIT |
